R2511-HP MSR Router Series Layer 3 - IP Routing Command Reference(V5)

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Default
The network type of an interface depends on its link layer protocol.
Views
Interface view
Default command level
2: System level
Parameters
broadcast: Specifies the network type as Broadcast.
nbma: Specifies the network type as NBMA.
p2mp: Specifies the network type as P2MP.
unicast: Specifies the P2MP interface to unicast OSPF packets. By default, a P2MP interface multicasts
OSPF packets.
p2p: Specifies the network type as P2P.
Usage guidelines
• For Ethernet, and FDDI, the default network type is broadcast.
• For ATM, FR, and X.25, the default network type is NBMA.
• For PPP, LAPB, HDLC, and POS, the default network type is P2P.
If a router on a broadcast network does not support multicast, configure the network type for the
connected interfaces as NBMA.
If any two routers on an NBMA network are directly connected through a virtual link—the network is fully
meshed, you can configure the network type for the connected interfaces as NBMA. If two routers are not
directly connected, you must configure the P2MP network type so that the two routers can exchange
routing information through another router.
When the network type of an interface is NBMA or P2MP unicast, you must use the peer command to
specify the neighbor.
If only two routers run OSPF on a network, you can configure the network type for the connected
interfaces as P2P.
When the network type of an interface is P2MP unicast, all OSPF packets are unicast by the interface.
Examples
# Configure an interface's OSPF network type as NBMA.
<Sysname> system-view
[Sysname] interface ethernet 1/1
[Sysname-Ethernet1/1] ospf network-type nbma
Related commands
ospf dr-priority
ospf packet-process prioritized-treatment
Use ospf packet-process prioritized-treatment to enable OSPF to give priority to receiving and
processing Hello packets.
Use undo ospf packet-process prioritized-treatment to restore the default.